Paint mixer



FIG. 1 is a perspective view of a paint mixer showing my new design;

FIG. 2 is a front elevational view thereof, the rear being identical;

FIG. 3 is a side elevational view thereof, both sides being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a paint mixer, as shown. 